Go through your results for flights to Tiree in United Kingdom with Netflights. The most popular airlines for this route are Loganair & British Airways, with Loganair claiming the top spot. Although Loganair usually has the best prices, it's best to double check what's available for your travel dates.
If these flights are too expensive, try searching for a different time of year. So if your dates are flexible, consider looking at different times of year.
Tiree receives six direct and indirect flights every week, but the cheapest airline is normally Loganair. So, if the flights to Tiree don't work for you, you could always try searching for flights to other airports in United Kingdom.
You can also broaden your search by looking at more than one departure airport. The most popular airports with direct flights to Tiree are Glasgow (GLA). Have a look around – you might be able to save by flying from a different airport or city.